If I am bidding through e-submission, do I have to fill the Bidding documents in conventional way ?

YES. At first, a Bidder must fill and prepare the bidding documents in conventional manner as specified in Instructions to Bidders. For E-submission purpose, the specified documents in Bid data sheet have to be scanned in PDF format and submitted through DOR website. In case of e-submitted bids, submission of original Bid in hard copy is not mandatory. For verification purpose the Employer may request to submit original completed Bid and other clarification documents.